| /* |
| * Copyright 2006 The Android Open Source Project |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| |
| // TODO: add unittests for all these operations |
| |
| #ifndef SkOSFile_DEFINED |
| #define SkOSFile_DEFINED |
| |
| #if defined(STARBOARD) |
| #include "starboard/file.h" |
| #define SkFile SbFilePrivate |
| #else |
| #include <stdio.h> |
| #define SkFile FILE |
| #endif |
| |
| #include "include/core/SkString.h" |
| |
| enum SkFILE_Flags { |
| kRead_SkFILE_Flag = 0x01, |
| kWrite_SkFILE_Flag = 0x02 |
| }; |
| |
| SkFile* sk_fopen(const char path[], SkFILE_Flags); |
| void sk_fclose(SkFile*); |
| |
| size_t sk_fgetsize(SkFile*); |
| |
| size_t sk_fwrite(const void* buffer, size_t byteCount, SkFile*); |
| |
| void sk_fflush(SkFile*); |
| void sk_fsync(SkFile*); |
| |
| size_t sk_ftell(SkFile*); |
| |
| /** Maps a file into memory. Returns the address and length on success, NULL otherwise. |
| * The mapping is read only. |
| * When finished with the mapping, free the returned pointer with sk_fmunmap. |
| */ |
| void* sk_fmmap(SkFile* f, size_t* length); |
| |
| /** Maps a file descriptor into memory. Returns the address and length on success, NULL otherwise. |
| * The mapping is read only. |
| * When finished with the mapping, free the returned pointer with sk_fmunmap. |
| */ |
| void* sk_fdmmap(int fd, size_t* length); |
| |
| /** Unmaps a file previously mapped by sk_fmmap or sk_fdmmap. |
| * The length parameter must be the same as returned from sk_fmmap. |
| */ |
| void sk_fmunmap(const void* addr, size_t length); |
| |
| /** Returns true if the two point at the exact same filesystem object. */ |
| bool sk_fidentical(SkFile* a, SkFile* b); |
| |
| /** Returns the underlying file descriptor for the given file. |
| * The return value will be < 0 on failure. |
| */ |
| int sk_fileno(SkFile* f); |
| |
| /** Returns true if something (file, directory, ???) exists at this path, |
| * and has the specified access flags. |
| */ |
| bool sk_exists(const char *path, SkFILE_Flags = (SkFILE_Flags)0); |
| |
| // Returns true if a directory exists at this path. |
| bool sk_isdir(const char *path); |
| |
| // Like pread, but may affect the file position marker. |
| // Returns the number of bytes read or SIZE_MAX if failed. |
| size_t sk_qread(SkFile*, void* buffer, size_t count, size_t offset); |
| |
| |
| // Create a new directory at this path; returns true if successful. |
| // If the directory already existed, this will return true. |
| // Description of the error, if any, will be written to stderr. |
| bool sk_mkdir(const char* path); |
| |
| class SkOSFile { |
| public: |
| class Iter { |
| public: |
| Iter(); |
| Iter(const char path[], const char suffix[] = nullptr); |
| ~Iter(); |
| |
| void reset(const char path[], const char suffix[] = nullptr); |
| /** If getDir is true, only returns directories. |
| Results are undefined if true and false calls are |
| interleaved on a single iterator. |
| */ |
| bool next(SkString* name, bool getDir = false); |
| |
| static const size_t kStorageSize = 40; |
| private: |
| SkAlignedSStorage<kStorageSize> fSelf; |
| }; |
| }; |
| |
| #endif |